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Posted to users@jena.apache.org by Vanessa Williams <va...@thoughtwire.ca> on 2013/09/17 21:42:52 UTC
New error in TDB 0.10.1, not in 0.9.4, com.hp.hpl.jena.sparql.ARQInternalErrorException:
Attempt to reassign...
Hello, we recently upgraded TDB from 0.9.4 to 0.10.1 because we needed a
nice fix in the latter. However now we are seeing errors such as these.
ERROR 2013-09-17 19:21:05.026 -
com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorCloseable -
QueryFatalException
com.hp.hpl.jena.sparql.ARQInternalErrorException: Attempt to reassign
'?observation' from '<
http://thoughtwire.ca/ontology/2012/08/rvhs/shiftObservation_22>' to '<
http://thoughtwire.ca/ontology/2012/08/rvhs/shiftObservation_22>'
at
com.hp.hpl.jena.sparql.engine.binding.BindingHashMap.checkAdd(BindingHashMap.java:111)
at
com.hp.hpl.jena.sparql.engine.binding.BindingHashMap.add(BindingHashMap.java:92)
at
com.hp.hpl.jena.sparql.engine.binding.BindingFactory.materialize(BindingFactory.java:60)
at
com.hp.hpl.jena.tdb.solver.QueryEngineTDB$QueryIteratorMaterializeBinding.moveToNextBinding(QueryEngineTDB.java:136)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.nextBinding(QueryIteratorBase.java:154)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorWrapper.moveToNextBinding(QueryIteratorWrapper.java:43)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.nextBinding(QueryIteratorBase.java:154)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.next(QueryIteratorBase.java:129)
at
com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.next(QueryIteratorBase.java:41)
at org.apache.jena.atlas.iterator.Iter$5.hasNext(Iter.java:335)
at
com.hp.hpl.jena.sparql.engine.QueryExecutionBase.execConstruct(QueryExecutionBase.java:228)
at
com.hp.hpl.jena.sparql.engine.QueryExecutionBase.execConstruct(QueryExecutionBase.java:204)
<...snip>
Can anyone shed any light on a possible cause? The error message is not
very informative. Note that the queries we're using haven't changed, and
neither has our code usage, only the TDB version has been altered.
Thanks in advance for any advice,
Vanessa
Re: New error in TDB 0.10.1, not in 0.9.4, com.hp.hpl.jena.sparql.ARQInternalErrorException:
Attempt to reassign...
Posted by Andy Seaborne <an...@apache.org>.
On 18/09/13 14:47, Vanessa Williams wrote:
> Hi Andy, here's the query that threw that exception:
Thanks - I haven't been able to turn that into a test case just by
looking at the query.
It seems to depend on the data in a way I haven't guessed.
Please could we have a complete, minimal example? i.e. data+query+how
it's executed that provokes the exception. Also, do you use an initial
binding?
Andy
>
> BASE <http://thoughtwire.ca/ontology/2012/08/rvhs/>
> PREFIX twehr: <http://thoughtwire.ca/ontology/ehr/2012/09/>
> PREFIX schema: <http://schema.org/>
> CONSTRUCT {
> <rvhsObservationsPersistence/addShiftObservation> twehr:Visit ?visit .
> <rvhsObservationsPersistence/addShiftObservation> twehr:UpdateTime ?time .
> }
> WHERE {
> ?observation schema:DateTime ?time .
> ?observation twehr:ShiftReport ?shiftReport .
> ?shiftReport twehr:Visit ?visit .
> {
> SELECT ?observation ?time
> WHERE {
> ?observation schema:DateTime ?time .
> }
> ORDER BY DESC(?time) LIMIT 1
> }
> }
>
>
> Changing it to:
>
> BASE <http://thoughtwire.ca/ontology/2012/08/rvhs/>
> PREFIX twehr: <http://thoughtwire.ca/ontology/ehr/2012/09/>
> PREFIX schema: <http://schema.org/>
> CONSTRUCT {
> <rvhsObservationsPersistence/addShiftObservation> twehr:Visit ?visit .
> <rvhsObservationsPersistence/addShiftObservation> twehr:UpdateTime ?time .
> }
> WHERE {
> ?observation schema:DateTime ?time .
> ?observation twehr:ShiftReport ?shiftReport .
> ?shiftReport twehr:Visit ?visit .
> }
> ORDER BY DESC(?time) LIMIT 1
>
> did away with the error, though we aren't yet certain that it has the same
> effect as the former (pretty sure, just not 100% certain.)
>
> Thanks,
> Vanessa
>
>
> On Wed, Sep 18, 2013 at 6:56 AM, Andy Seaborne <an...@apache.org> wrote:
>
>> Hi Vanessa,
>>
>> What is the query that cause this exception?
>>
>> (I will wildly guess it involves a LET)
>>
>> Andy
>>
>>
>> On 17/09/13 20:42, Vanessa Williams wrote:
>>
>>> Hello, we recently upgraded TDB from 0.9.4 to 0.10.1 because we needed a
>>> nice fix in the latter. However now we are seeing errors such as these.
>>>
>>> ERROR 2013-09-17 19:21:05.026 -
>>> com.hp.hpl.jena.sparql.engine.**iterator.**QueryIteratorCloseable -
>>> QueryFatalException
>>> com.hp.hpl.jena.sparql.**ARQInternalErrorException: Attempt to reassign
>>> '?observation' from '<
>>> http://thoughtwire.ca/**ontology/2012/08/rvhs/**shiftObservation_22<http://thoughtwire.ca/ontology/2012/08/rvhs/shiftObservation_22>>'
>>> to '<
>>> http://thoughtwire.ca/**ontology/2012/08/rvhs/**shiftObservation_22<http://thoughtwire.ca/ontology/2012/08/rvhs/shiftObservation_22>
>>>> '
>>> at
>>> com.hp.hpl.jena.sparql.engine.**binding.BindingHashMap.**
>>> checkAdd(BindingHashMap.java:**111)
>>> at
>>> com.hp.hpl.jena.sparql.engine.**binding.BindingHashMap.add(**
>>> BindingHashMap.java:92)
>>> at
>>> com.hp.hpl.jena.sparql.engine.**binding.BindingFactory.**
>>> materialize(BindingFactory.**java:60)
>>> at
>>> com.hp.hpl.jena.tdb.solver.**QueryEngineTDB$**
>>> QueryIteratorMaterializeBindin**g.moveToNextBinding(**
>>> QueryEngineTDB.java:136)
>>> at
>>> com.hp.hpl.jena.sparql.engine.**iterator.QueryIteratorBase.**
>>> nextBinding(QueryIteratorBase.**java:154)
>>> at
>>> com.hp.hpl.jena.sparql.engine.**iterator.QueryIteratorWrapper.**
>>> moveToNextBinding(**QueryIteratorWrapper.java:43)
>>> at
>>> com.hp.hpl.jena.sparql.engine.**iterator.QueryIteratorBase.**
>>> nextBinding(QueryIteratorBase.**java:154)
>>> at
>>> com.hp.hpl.jena.sparql.engine.**iterator.QueryIteratorBase.**
>>> next(QueryIteratorBase.java:**129)
>>> at
>>> com.hp.hpl.jena.sparql.engine.**iterator.QueryIteratorBase.**
>>> next(QueryIteratorBase.java:**41)
>>> at org.apache.jena.atlas.**iterator.Iter$5.hasNext(Iter.**java:335)
>>> at
>>> com.hp.hpl.jena.sparql.engine.**QueryExecutionBase.**execConstruct(**
>>> QueryExecutionBase.java:228)
>>> at
>>> com.hp.hpl.jena.sparql.engine.**QueryExecutionBase.**execConstruct(**
>>> QueryExecutionBase.java:204)
>>> <...snip>
>>>
>>> Can anyone shed any light on a possible cause? The error message is not
>>> very informative. Note that the queries we're using haven't changed, and
>>> neither has our code usage, only the TDB version has been altered.
>>>
>>> Thanks in advance for any advice,
>>>
>>> Vanessa
>>>
>>>
>>
>
Re: New error in TDB 0.10.1, not in 0.9.4, com.hp.hpl.jena.sparql.ARQInternalErrorException:
Attempt to reassign...
Posted by Vanessa Williams <va...@thoughtwire.ca>.
Hi Andy, here's the query that threw that exception:
BASE <http://thoughtwire.ca/ontology/2012/08/rvhs/>
PREFIX twehr: <http://thoughtwire.ca/ontology/ehr/2012/09/>
PREFIX schema: <http://schema.org/>
CONSTRUCT {
<rvhsObservationsPersistence/addShiftObservation> twehr:Visit ?visit .
<rvhsObservationsPersistence/addShiftObservation> twehr:UpdateTime ?time .
}
WHERE {
?observation schema:DateTime ?time .
?observation twehr:ShiftReport ?shiftReport .
?shiftReport twehr:Visit ?visit .
{
SELECT ?observation ?time
WHERE {
?observation schema:DateTime ?time .
}
ORDER BY DESC(?time) LIMIT 1
}
}
Changing it to:
BASE <http://thoughtwire.ca/ontology/2012/08/rvhs/>
PREFIX twehr: <http://thoughtwire.ca/ontology/ehr/2012/09/>
PREFIX schema: <http://schema.org/>
CONSTRUCT {
<rvhsObservationsPersistence/addShiftObservation> twehr:Visit ?visit .
<rvhsObservationsPersistence/addShiftObservation> twehr:UpdateTime ?time .
}
WHERE {
?observation schema:DateTime ?time .
?observation twehr:ShiftReport ?shiftReport .
?shiftReport twehr:Visit ?visit .
}
ORDER BY DESC(?time) LIMIT 1
did away with the error, though we aren't yet certain that it has the same
effect as the former (pretty sure, just not 100% certain.)
Thanks,
Vanessa
On Wed, Sep 18, 2013 at 6:56 AM, Andy Seaborne <an...@apache.org> wrote:
> Hi Vanessa,
>
> What is the query that cause this exception?
>
> (I will wildly guess it involves a LET)
>
> Andy
>
>
> On 17/09/13 20:42, Vanessa Williams wrote:
>
>> Hello, we recently upgraded TDB from 0.9.4 to 0.10.1 because we needed a
>> nice fix in the latter. However now we are seeing errors such as these.
>>
>> ERROR 2013-09-17 19:21:05.026 -
>> com.hp.hpl.jena.sparql.engine.**iterator.**QueryIteratorCloseable -
>> QueryFatalException
>> com.hp.hpl.jena.sparql.**ARQInternalErrorException: Attempt to reassign
>> '?observation' from '<
>> http://thoughtwire.ca/**ontology/2012/08/rvhs/**shiftObservation_22<http://thoughtwire.ca/ontology/2012/08/rvhs/shiftObservation_22>>'
>> to '<
>> http://thoughtwire.ca/**ontology/2012/08/rvhs/**shiftObservation_22<http://thoughtwire.ca/ontology/2012/08/rvhs/shiftObservation_22>
>> >'
>> at
>> com.hp.hpl.jena.sparql.engine.**binding.BindingHashMap.**
>> checkAdd(BindingHashMap.java:**111)
>> at
>> com.hp.hpl.jena.sparql.engine.**binding.BindingHashMap.add(**
>> BindingHashMap.java:92)
>> at
>> com.hp.hpl.jena.sparql.engine.**binding.BindingFactory.**
>> materialize(BindingFactory.**java:60)
>> at
>> com.hp.hpl.jena.tdb.solver.**QueryEngineTDB$**
>> QueryIteratorMaterializeBindin**g.moveToNextBinding(**
>> QueryEngineTDB.java:136)
>> at
>> com.hp.hpl.jena.sparql.engine.**iterator.QueryIteratorBase.**
>> nextBinding(QueryIteratorBase.**java:154)
>> at
>> com.hp.hpl.jena.sparql.engine.**iterator.QueryIteratorWrapper.**
>> moveToNextBinding(**QueryIteratorWrapper.java:43)
>> at
>> com.hp.hpl.jena.sparql.engine.**iterator.QueryIteratorBase.**
>> nextBinding(QueryIteratorBase.**java:154)
>> at
>> com.hp.hpl.jena.sparql.engine.**iterator.QueryIteratorBase.**
>> next(QueryIteratorBase.java:**129)
>> at
>> com.hp.hpl.jena.sparql.engine.**iterator.QueryIteratorBase.**
>> next(QueryIteratorBase.java:**41)
>> at org.apache.jena.atlas.**iterator.Iter$5.hasNext(Iter.**java:335)
>> at
>> com.hp.hpl.jena.sparql.engine.**QueryExecutionBase.**execConstruct(**
>> QueryExecutionBase.java:228)
>> at
>> com.hp.hpl.jena.sparql.engine.**QueryExecutionBase.**execConstruct(**
>> QueryExecutionBase.java:204)
>> <...snip>
>>
>> Can anyone shed any light on a possible cause? The error message is not
>> very informative. Note that the queries we're using haven't changed, and
>> neither has our code usage, only the TDB version has been altered.
>>
>> Thanks in advance for any advice,
>>
>> Vanessa
>>
>>
>
Re: New error in TDB 0.10.1, not in 0.9.4, com.hp.hpl.jena.sparql.ARQInternalErrorException:
Attempt to reassign...
Posted by Vanessa Williams <va...@thoughtwire.ca>.
Hi Andy, I will forward the exact query when I'm back to my desk but we did
discover that the offending part was a subquery ( a SELECT WHERE { } inside
of a WHERE clause. It validates as SPARQL and used to work. When we rewrote
it to exclude this subquery all was good again. Details shortly.
Thanks,
Vanessa
On Wednesday, September 18, 2013, Andy Seaborne wrote:
> Hi Vanessa,
>
> What is the query that cause this exception?
>
> (I will wildly guess it involves a LET)
>
> Andy
>
> On 17/09/13 20:42, Vanessa Williams wrote:
>
>> Hello, we recently upgraded TDB from 0.9.4 to 0.10.1 because we needed a
>> nice fix in the latter. However now we are seeing errors such as these.
>>
>> ERROR 2013-09-17 19:21:05.026 -
>> com.hp.hpl.jena.sparql.engine.**iterator.**QueryIteratorCloseable -
>> QueryFatalException
>> com.hp.hpl.jena.sparql.**ARQInternalErrorException: Attempt to reassign
>> '?observation' from '<
>> http://thoughtwire.ca/**ontology/2012/08/rvhs/**shiftObservation_22<http://thoughtwire.ca/ontology/2012/08/rvhs/shiftObservation_22>>'
>> to '<
>> http://thoughtwire.ca/**ontology/2012/08/rvhs/**shiftObservation_22<http://thoughtwire.ca/ontology/2012/08/rvhs/shiftObservation_22>
>> >'
>> at
>> com.hp.hpl.jena.sparql.engine.**binding.BindingHashMap.**
>> checkAdd(BindingHashMap.java:**111)
>> at
>> com.hp.hpl.jena.sparql.engine.**binding.BindingHashMap.add(**
>> BindingHashMap.java:92)
>> at
>> com.hp.hpl.jena.sparql.engine.**binding.BindingFactory.**
>> materialize(BindingFactory.**java:60)
>> at
>> com.hp.hpl.jena.tdb.solver.**QueryEngineTDB$**
>> QueryIteratorMaterializeBindin**g.moveToNextBinding(**
>> QueryEngineTDB.java:136)
>> at
>> com.hp.hpl.jena.sparql.engine.**iterator.QueryIteratorBase.**
>> nextBinding(QueryIteratorBase.**java:154)
>> at
>> com.hp.hpl.jena.sparql.engine.**iterator.QueryIteratorWrapper.**
>> moveToNextBinding(**QueryIteratorWrapper.java:43)
>> at
>> com.hp.hpl.jena.sparql.engine.**iterator.QueryIteratorBase.**
>> nextBinding(QueryIteratorBase.**java:154)
>> at
>> com.hp.hpl.jena.sparql.engine.**iterator.QueryIteratorBase.**
>> next(QueryIteratorBase.java:**129)
>> at
>> com.hp.hpl.jena.sparql.engine.**iterator.QueryIteratorBase.**
>> next(QueryIteratorBase.java:**41)
>> at org.apache.jena.atlas.**iterator.Iter$5.hasNext(Iter.**java:335)
>> at
>> com.hp.hpl.jena.sparql.engine.**QueryExecutionBase.**execConstruct(**
>> QueryExecutionBase.java:228)
>> at
>> com.hp.hpl.jena.sparql.engine.**QueryExecutionBase.**execConstruct(**
>> QueryExecutionBase.java:204)
>> <...snip>
>>
>> Can anyone shed any light on a possible cause? The error message is not
>> very informative. Note that the queries we're using haven't changed, and
>> neither has our code usage, only the TDB version has been altered.
>>
>> Thanks in advance for any advice,
>>
>> Vanessa
>>
>>
>
Re: New error in TDB 0.10.1, not in 0.9.4, com.hp.hpl.jena.sparql.ARQInternalErrorException:
Attempt to reassign...
Posted by Andy Seaborne <an...@apache.org>.
Hi Vanessa,
What is the query that cause this exception?
(I will wildly guess it involves a LET)
Andy
On 17/09/13 20:42, Vanessa Williams wrote:
> Hello, we recently upgraded TDB from 0.9.4 to 0.10.1 because we needed a
> nice fix in the latter. However now we are seeing errors such as these.
>
> ERROR 2013-09-17 19:21:05.026 -
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorCloseable -
> QueryFatalException
> com.hp.hpl.jena.sparql.ARQInternalErrorException: Attempt to reassign
> '?observation' from '<
> http://thoughtwire.ca/ontology/2012/08/rvhs/shiftObservation_22>' to '<
> http://thoughtwire.ca/ontology/2012/08/rvhs/shiftObservation_22>'
> at
> com.hp.hpl.jena.sparql.engine.binding.BindingHashMap.checkAdd(BindingHashMap.java:111)
> at
> com.hp.hpl.jena.sparql.engine.binding.BindingHashMap.add(BindingHashMap.java:92)
> at
> com.hp.hpl.jena.sparql.engine.binding.BindingFactory.materialize(BindingFactory.java:60)
> at
> com.hp.hpl.jena.tdb.solver.QueryEngineTDB$QueryIteratorMaterializeBinding.moveToNextBinding(QueryEngineTDB.java:136)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.nextBinding(QueryIteratorBase.java:154)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorWrapper.moveToNextBinding(QueryIteratorWrapper.java:43)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.nextBinding(QueryIteratorBase.java:154)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.next(QueryIteratorBase.java:129)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.next(QueryIteratorBase.java:41)
> at org.apache.jena.atlas.iterator.Iter$5.hasNext(Iter.java:335)
> at
> com.hp.hpl.jena.sparql.engine.QueryExecutionBase.execConstruct(QueryExecutionBase.java:228)
> at
> com.hp.hpl.jena.sparql.engine.QueryExecutionBase.execConstruct(QueryExecutionBase.java:204)
> <...snip>
>
> Can anyone shed any light on a possible cause? The error message is not
> very informative. Note that the queries we're using haven't changed, and
> neither has our code usage, only the TDB version has been altered.
>
> Thanks in advance for any advice,
>
> Vanessa
>